1. Yes if the price goes to 110 and if your target is executed and if the price comes down to 106 the SL order will also get executed becoming a fresh sell order if you don’t cancel it.

2. Yep, since you are a beginner stick to buying calls if bullish and buying puts if bearish and remember to not bet more than 10% of your capital on each trade while buying options as they can loose money fast.